This reverts commit 8ee507f1.

Reason for revert: Speculative, to unblock the V8 roller

https://ci.chromium.org/p/chromium/builders/try/linux-rel/173637

Original change's description:
> [ic] Inline constant fields in IC
> 
> Previously, the handler would load the constant field from the holder
> everytime by using the descriptor index. Instead, this patch inlines
> the constant field directly into the handler.
> 
> Change-Id: Ia731811b135897033f4c5dc973031a30f25a64ed
> Bug: v8:9616
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1688829
> Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63332}

TBR=gsathya@chromium.org,ishell@chromium.org,verwaest@chromium.org

Change-Id: I36c5648c56f1d78447b7a45504cdebf593c020a1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9616
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1766148Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63353}